Greater London · England
Hillingdon Glazing Silicone
Glazing silicone for Hillingdon, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Shower screens leaking along the wall or tray
- Stained, discoloured glazing silicone
- Leaking glazing joints on a rooflight
How we handle glazing silicone in Hillingdon
Conservatory leaks often start at a sealant joint at the glass-to-frame or frame-to-wall joints. We find the joint that’s letting water in and renew it, and if it’s something sealant cannot fix, we will tell you. We work on glass-to-glass joints, shower screens and conservatory frames, and common reasons people get in touch are glass-to-glass joints that have split and water getting into a conservatory at the joints.
Much of London’s older housing was built with timber sash windows, some still in place and some long since replaced. Whatever is in the opening now, the joint between frame and wall is what keeps the weather out, in Hillingdon as anywhere.
There’s a 12-month guarantee on every job.
- Where
- Hillingdon (UB10, UB8, UB9, HA4)
- Region
- Greater London
- Cover
- A year, on every job
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
For landlords and businesses
Housing providers, facilities teams and property managers book us too in Hillingdon and across Greater London. We can quote a run of properties together, and we are fully insured for the work.
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can be quoted together.
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Open vents or windows to let moisture out
- Check the gutters above the glazing for debris
- Use a gentle glass cleaner and a soft cloth
- Check the silicone on glass every year or so
Look over the glazing joints every year or so. Catching a split early keeps the repair small, before water gets in.
Cracked glazing silicone means the joint has failed. Resealing now is a small job compared with fixing water damage later.
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
The process
At the end, we look at the finished work together. The work normally takes a few hours, depending on how many joints need doing, depending on the size of the job. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.
- First, we check where the water gets in.
- We remove the old sealant carefully.
- The joint is cleaned and degreased.
- We lay the new bead and tool it smooth.
- We check the finished joints and test with water where it’s safe.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Try not to wet indoor joints just before the visit
- On commercial sites, let us know about site rules
Ask for a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand, and we’ll take it from there.
Read more
Windows and doors in Hillingdon
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Ickenham Hall (about 1.8 miles north) nearby, there’s older building stock in the area around Hillingdon as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
As a London address, Hillingdon can be tricky for parking: let us know about parking bays, permits or a driveway. Schools such as Abbotsfield School for Boys are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Hillingdon is about 2 miles north-west of Hayes, in Greater London. We carry out glazing silicone for homeowners, landlords and businesses in Hillingdon. Hillingdon is one of 764 places in Greater London where we work for glazing silicone. You can also see our page for London, about 15 miles away.
Every address in UB10, UB8, UB9 and HA4 is covered for glazing silicone, from the main roads to the quietest streets. Whether your property is on The Larches, Brampton Road and Clifton Gardens or a nearby road, our applicators can take on the job. Being close to the B465 and B467, Hillingdon is easy for our applicators to reach. If you’re just outside Hillingdon, we cover Uxbridge (1 mile west), Ickenham (1 mile north), Cowley (2 miles south-west), Yiewsley (2 miles south-west) and Hayes (2 miles south-east). We also work in nearby towns such as London (15 miles east), City of Westminster (13 miles east), Marylebone (13 miles east), Kensington (11 miles east), St Pancras (14 miles east) and Hampstead (12 miles east).
Near you in Hillingdon
Locally, jobs take us to homes and businesses close to Highfield Primary School, Norman Leddy Memorial Gardens and Oak Wood School. For rail, the closest station is West Drayton station, about 2.2 miles south-west. Well-known places in the area include Hillingdon Museum and Archives Services (1.4 miles north-west) and Hillingdon Hospital (1 mile south-west). Green spaces nearby include Northala Fields and Gutteridge Wood and Meadows.
What affects the cost of glazing silicone
We do not publish a price list, because no two jobs are the same. What we look at:
- How much old sealant there is and how hard it is to remove
- The type of sealant required
- Any mould that needs treating
- How easy the joints are to reach
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and agree the price before starting.
Asking for a quote
To help us quote quickly, let us know:
- How many joints, rooms or windows are involved
- What’s wrong with the joints now
- How we’d reach the joints
- Whether it has been sealed before
Want a quote for glazing silicone? Please call 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and give you a clear quote before we start.
Signs you need glazing silicone in Hillingdon
Sealant laid over old sealant doesn’t last. Many failed joints we see have been topped up rather than cut out leaving a path for water.
It’s worth asking for a quote if you see:
- Water getting into a conservatory at the joints
- Failed sealant around rooflight glass
- Sealant that was laid over old silicone and failed
- Stained, discoloured glazing silicone
In the older streets around Church of St John, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Before you book anyone
- Who does the work, and how experienced they are
- Whether they’re fully insured
- What the quote includes, VAT included or not
- When the joint can take water or movement
Hillingdon questions
Is Hillingdon in your area for glazing silicone?
Yes. Our work covers London and the South East, and Hillingdon is part of that. Just call 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear price.
Is parking an issue for glazing silicone in Hillingdon?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.
Do you fit new glass or sealed units?
Glass replacement is not our trade. We look after the sealant joints, and we’ll tell you if a unit looks like it has failed.
What does glazing silicone cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we’ll talk you through it.
Is it possible to redo the silicone on a shower screen?
Yes. We remove the old sealant and reseal the wall and tray joints.
Will resealing stop my conservatory leaking?
Yes, when the leak is a failed sealant joint. If the cause is the roof, a panel or a unit, we will say so.
Is balustrade sealant something you do?
We can. We cut out the failed sealant and reseal the base joint with a suitable product.
Which silicone is used for glass joints?
Glass needs a sealant made for glazing. We use neutral-cure glazing silicone and anti-fungal silicone in wet areas.
Also in Hillingdon
Honest limits
A few problems are outside what sealant work can do:
- Rotten or badly damaged frames
- Failed flashing around a conservatory
- A roof that has moved or dropped
If you’re not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer.
Where we work in Hillingdon
- Glass-to-frame joints
- Glass balustrade bases
- Glass-to-glass joints
- Rooflights
- Shower screens
- Conservatory frames